This question is interesting. If you mean that the university is disconnected (the website of this university is inaccessible), there may be something wrong with this website, or the domain name has not been updated and has been changed. If it means that college students are disconnected from the network at school, it may be the campus network power failure, failure, arrears, other downtime and so on. The so-called wireless Internet access will also be disconnected, which can be divided into wireless WIFI, WLAN and wireless WAN. These are all possible network disconnections, as are those caused by arrears, poor signal or no signal. Hehe, the answer is nonsense, mainly to earn points.